Halifax,NS        CYHZ
Western Head,NS   CWWE
Yarmouth,NS       CYQI
Brier Island,NS   CWVU
Debert, NS        CZBD
Point Lepreau,NB  CWPE
St. Stephen, NB   CWSS
St. John, NB      CYSJ
Moncton, NB       CYQM
Fredericton, NB   CYFC
Grands Manan, NB  CXGM (but there seems to be a problem with this one)
Bangor            KBGR
Bar Harbor        KBHB
Rockland          KRKD
Portland          KPWM
Wiscasset         KIWI
Portsmouth, NH    KPSM
Boston,MA         KBOS
Provincetown,MA   KPVC
Nantucket, MA     KACK
Block Island      KBID

can all be submitted like:
http://adds.aviationweather.gov/metars/index.php?submit=1&station_ids=KBHB&chk_metars=on&hoursStr=2&std_trans=translated